Re: Anyone given Color Daguerreotypes a try?

From: MARTINM ^lt;[email protected]>
Date: 06/19/04-08:11:34 AM Z
Message-id: <000c01c45607$55c88160$c3a8a2d9@MUMBOSATO>

This looks similar to experiments Becquerel carried out around (1849-1855).
The plates were based on silver chloride and were said to have produced
rather pale colors. Becquerel exposed his plates for several hours. The
pictures couldn't be fixed and had to be kept protected from light. So far
the copper system looks superior - though I doubt about the speed of such a


----- Original Message -----
From: "Jeff Sumner" <>
To: <>
Sent: Saturday, June 19, 2004 2:19 PM
Subject: Anyone given Color Daguerreotypes a try?

> From the back of an old Daguerreotype manual:
> [quote]
> COLORED DAGUERREOTYPES ON COPPER.--To effect this, take a polished plate
> copper and expose it to the vapor of iodine, or bromine, or the two
> substances combined; or either of them in combination with chlorine. This
> gives a sensitive coating to the surface of the plate, which may then be
> submitted to the action of light in the camera. After remaining a
> time in the camera, the plate is taken out and exposed to the vapor of
> sulphuretted hydrogen. This vapor produces various colors on the plate,
> according to the intensity with which the light has acted on the different
> parts; consequently a colored photographic picture is obtained. No further
> process is necessary as exposure to light does not effect the picture.
> By this process we have an advantage over the silvered plate, both in
> economy, and in the production of the picture in colors.
> [/quote]
> Anyone give it a go? What colors, exactly? Doesn't sound like the color
> process that someone else was trying to perfect at the time, and it most
> CERTAINLY isn't the Polaroid answer to the color problem.
> It _is_ interesting, though.
> JD
Received on Sun Jun 20 11:59:10 2004

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